... 45Mn2,ST52,37Mn5 and alloy. 3.Length:1m-9m 4.Life:50000CBM. 5.Name:hardened pip Wear-resisting Concrete ... serving life of it can increase 3~5 times.4.OEM is available from us.Technical Data of ... 85148 1,000(45Mn2)5148 12,000 7152-148 20,000Double1252.5+21--914860-652.540,000Layer3+2148350,000Piep ... 1484.550,000Common12541--914860-65 Steel4.5148 Pipe (20#)4.75148 1504.5148 5148 This is the drawing ...